DoorIO Line · Business phone and texting app

Your Business Calls and Texts, in One App

DoorIO Line gives one person a business phone number and a texting app for business: answer calls, text customers back, catch missed calls with an automatic text, and reply to Facebook and Instagram messages from your computer or phone.

30-day free trial, then $67/month. Card required. Includes one business number, one user and $30 in pooled usage each month.

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Everything One Person Needs to Stay on Top of Customer Conversations

Business calls in the web and mobile app

Make and receive calls from your business number, not your personal one, on your computer or phone.

Two-way business texting*

Text customers from your business number and keep each conversation's history in one place.

Missed-call text-back*

When you can't answer, the caller gets a text so they can reply instead of calling someone else.

Voicemail

Callers can leave a message when you're busy, and you pick it up in the app.

Facebook & Instagram messages

Reply to Facebook Messenger and Instagram DMs from the same inbox. Social post scheduling isn't included.

Incoming texts from day one

Texts to your business number arrive once your number is activated.

How DoorIO Line Works

Choose your business number.
Start your 30-day free trial.
Send your setup details within 3 days. Activation needs complete information and identity verification.
Start calling once your number is active. Texting and missed-call text-back switch on after carrier approval.

Business Texting Approval, Explained

*Outbound business texts and missed-call text-back require carrier registration (A2P 10DLC). It usually takes 1–2 weeks, and approval isn't guaranteed. DoorIO helps you complete it during setup. Carrier registration fees may apply. Calling doesn't depend on it.

Business texting questions

Already Have a Business Number?

Keep it. Forward your landline, text-enable an eligible number, or port it to DoorIO.

See your options for keeping your number · Just need a number? Get one for $7/month

Line or Connect?

Line is for one person. If your team needs to share one inbox, or you want email, website chat, online booking and automated follow-up, look at DoorIO Connect.

Compare Line and Connect

DoorIO Line Questions

What is a business texting app?

An app that lets you text customers from your business number instead of your personal cell, from your computer or phone, with each conversation kept in one place.

Is DoorIO Line a business phone system with texting?

For one person, yes: business calling in the web and mobile app, plus two-way texting after carrier approval, voicemail and missed-call text-back. Teams should look at DoorIO Connect.

When can I start texting customers?

Incoming texts arrive once your number is active. Sending texts and missed-call text-back start after A2P 10DLC approval, which usually takes 1–2 weeks. Approval isn't guaranteed.

How does missed-call text-back work in Line?

When a call goes unanswered, DoorIO texts the caller automatically, and their reply comes into your DoorIO inbox. It's included with no separate feature fee; the texts use your monthly usage credit.

What's included in $67/month?

One business number, one user, the calling and texting app, missed-call text-back, voicemail, Facebook & Instagram messages and $30 in pooled usage each month. Extra usage is billed at DoorIO's published rates.

Can I use my existing number with Line?

Often, yes. See your options for keeping your number.

Start Answering Every Customer From One App

Start 30-day trial Compare plans

30-day free trial, then $67/month. Card required. Usage beyond the included $30 is billed at DoorIO's published rates.